What is the biggest difference between people? The greatest difference between individuals is not intelligence, but whether the "concepts" in their minds are clear or not. Some people have only vague feelings about many things, for example, they've heard words like "effort," "friends," "learning," "making money" many times, but they can't clearly explain what they really mean, how to use them, or what the relationships between these words are. Others think about these concepts very thoroughly, understanding exactly what they refer to, how they work, and how to apply them in real life. The so-called "changing fate" is not about suddenly getting lucky, but about continuously clarifying and accurately understanding these concepts in your mind, and then sorting out the relationships between them. It's like upgrading your brain's system, turning chaotic ideas into a clear structure. People who do this consistently will make better decisions, take more effective actions, and naturally achieve better results over time.